baber/WOPTO huggingface dataset:
Patent GB-545783-A (GB)
Title: Improvements relating to lift control systems
IPC: B66B1/48
Filed: 1940-12-06
Abstract: 545,783. Control circuits for lifts. FOTHERGILL, J. R. Dec. 6, 1940, No. 17379. Drawings to Specification. [Class 40 (i)] The call button circuits are disabled when the lift is between landings by means of switch contacts carried by the cage which are controlled by a ramp at each landing or by means of contacts under the control of the usual floor selector or other device which moves in correspondence with the lift. Specification 526,110 which discloses switches at the landings for a similar purpose is referred to.
Patent GB-1358535-A (GB)
Title: Video amplifier
IPC: H03F3/18
Filed: 1973-04-11
Abstract: 1358535 Transistor amplifying circuits SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 11 April 1973 [22 April 1972] 17392/73 Heading H3T A video amplifier for applying a signal to a cathode-ray tube comprises two cascade connected stages T1, T2 and a final stage T3 whose output is intended to be connected to the grid of the tube, each of the cascade-connected stages comprising a transistor connected in the common-emitter mode, the first T1 being provided with frequency-compensation at its emitter, while the base of the second transistor T2 is connected to earth through a resistor R5, an inductor L1 and a capacitor C3 in series. The capacitance of the capacitor is sufficiently large as to effectively form a short-circuit for the high-frequencies within the pass band of the amplifier. A D.C. amplifier comprising transistors T4, T5 is connected to amplify the signal across the capacitor C3, having an output intended to be connected to the electrode of the cathode-ray tube for compensation of low frequency drift on the video amplifier.
Patent GB-1261759-A (GB)
Title: Water-fast inks and method of manufacture
IPC: C09D11/14
Filed: 1969-04-02
Abstract: 1,261,759. Water-fast inks. GILLETTE CO. 2 April, 1969 [9 April, 1968], No. 17409/69. Heading C3P.  A water-fast ink solution for ballpoint pens comprises (1) a water-insoluble resin in solution in a solvent therefor in an amount sufficient to raise the viscosity of the ink solution to 8000- 25,000 centipoises and (2) 20-50% by weight of a water-insoluble dye salt formed in situ in the presence of the resin by reaction of a sulphonic acid dye and a basic dye and/or an acid salt of a basic dye wherein the acid is a mineral acid or a carboxylic acid, the dye being soluble in the solvent for the resin. In an example the water-insoluble resin is a styreneallyl alcohol copolymer and the solvent is a mixture of diethylene glycol monoethyl ether, butylene glycol and octylene glycol.
Patent GB-458372-A (GB)
Title: Water tube marine boiler
IPC: F22B21/34
Filed: 1935-06-17
Abstract: 458,372. Water-tube steam boilers. BAUER, G., 82, Mittelweg, Hamburg, and SCHMIESKE, C., 12, Wangeroogerstrasse, Bremen, both in Germany. June 17, 1935, No. 17410. Convention date, June 15, 1934. [Class 123 (ii)] Each of a pair of boilers arranged across a ship consists of a steam drum i and two water drums c, d arranged at different levels connected by groups of upflow tubes g, which enclose the furnace, and by a group of inclined downflow tubes o connected only to the upper water drum d. The water drums are connected by downflow tubes k below the bottom wall f of the furnace.
Patent GB-874964-A (GB)
Title: Improvements in or relating to nuclear fuel materials
Inventor: LLOYD HENRY
IPC: G21C3/64
Filed: 1958-05-30
Abstract: 874,964. Nuclear fuel materials. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 19, 1959 [May 30, 1958], No. 17448/58. Class 39(4). A ceramic nuclear fuel material comprises particles of an oxide of a fissile or fertile metal and particles of a refractory oxide of an element of low neutron absorption crosssection, the particles being dispersed in a vitreous material of melting point above 1000‹C. The fissile oxide may be uranium dioxide and the refractory oxide alumina, magnesia, beryllia, or hafnium-free zirconia. A suitable vitreous material is a glass formed from alumina, silica, and a basic oxide such as lime or magnesia. The fuel material may be formed by mixing the constituent oxides with an organic binding agent (e.g. a mixture of polybutyl methacrylate, dibutyl phthalate, and acetone), cold pressing into pellets, and sintering at about 1500‹C. in an atmosphere of nitrogen, hydrogen, or cracked ammonia. In Example III a mixture of alumina, silica, magnesia, and lime is sintered first, ground to a fine powder, and then mixed with uranium dioxide and more alumina before pressing. The fuel material has a low permeability to fission product gases at high temperatures.
Patent GB-1243917-A (GB)
Title: Device for producing electrical pulses, particularly for data-processing machines
Inventor: MANDEL WALTER
IPC: B41J9/38
Filed: 1969-04-03
Abstract: 1,243,917. Shaft encoders. KOMBINAT ZENTRONIK VEB. 3 April, 1969, No. 17469/69. Heading G4H. Electrical pulses for a code generator are produced by a rotating drum or disc 3 bearing electrically conductive metallic segments 4 co-operating with a pick-up comprising one or more ferrite cores 1, 2 carrying one or more windings forming part of a normally balanced circuit which is unbalanced when a segment passes the pick-up. As shown in Fig. 1, equal and opposite voltages are induced in secondary windings 8, 9 except when a segment passes the end of core 1. A capacitor 16 may be connected across the output 11. The output may be taken from a point between windings 8, 9 and a point between two capacitors (17, 18, Fig. 5, not shown) connected in place of capacitor 16. One of the cores and/or coils may be axially adjustable (Figs. 3 and 4, not shown). In other arrangements, the pick-up comprises a single core carrying a single winding connected in a bridge circuit (Fig. 6, not shown) or comprises primary and secondary windings of opposite polarity connected to a common capacitor (19, Fig. 7, not shown).
Patent GB-146229-A (GB)
Title: Improved device for automatically stopping an engine when the lubrication becomes insufficient
IPC: F16N29/04
Filed: 1920-06-28
Abstract: 146,229. -Beraldi, G. Aug. 4, 1916, [Convention date]. Stop-gear.-An electric device for stopping an internal-combustion engine on failure of pressure in the lubricating-system, by earthing the magneto, comprises a switch member and an oil-operated piston. On starting the engine, the hand-operated sliding contact 13 is set so that an insulating- bush 12 receives the contact blade 3, adjustably mounted at 11, in a groove. When the oil pressure rises, a piston 5 carrying an insulating-knob 9 trips the blade and allows a spring 16 to move the contact 4 into the path of the blade ready for completing the circuit should the oil pressure fail. A leather washer 18 prevents escape of oil round the rod 8 when under pressure. The Specification as open to inspection under Sect. 91 (3) (a) stated that other forms of engines could be stopped by means of electrical control mechanism. This subject-matter does not appear in the Specification as accepted.
Patent GB-785015-A (GB)
Title: Improvements in or relating to method of preparing agglomerate calcium phosphate andthe product resulting from said method
IPC: C01B25/32
Filed: 1955-06-17
Abstract: Fluorine-free dicalcium phosphate bonded with acidic calcium-containing phosphatic material, preferably mono-calcium phosphate, to give a product with CaO/P2O5 ratio of 1.55/1.0 to 1.95/1.0 is usually prepared by mixing the phosphatic solution with dicalcium phosphate of particle size less than 80 mesh and drying the mixture, e.g. between 90-120 DEG  C.  The phosphatic solution may be the product of treatment of superphosphate.  The phosphatic solution usually has a CaO/P2O5 ratio of 0.2/1.0 to 1.0/1.0.  Specification 785,016 describes a similar method using solutions of free acids as bonding agents.
Patent GB-461410-A (GB)
Title: Improvements in boring bits for percussive rotary boring appliances
IPC: E21B10/58
Filed: 1936-06-24
Abstract: 461,410. Percussive drill bits. GOSOUDARSTVENNYI ZENTRALNYI NAOUTCHNO-ISSLEDOVATELSKI INSTITOUTE REDKIKH I MALYIKH METALLOVGIREDMET, AMATOV, N. N., KARADCHEV, V. A., KILCHEVSKY, B. V., KILCHEVSKY, J. V., EGOROV, I. V., SUDOPLATOV, A. P., SMIRNOV, G. I., and EMELIANOV, P. M. June 24, 1936, No. 17573. [Class 124] The drill bit has inserts 1 of sintered hard metal alloy, these inserts having V-shaped cutting edges and arranged in uniplanar star formation. The orifice 2 forms an outlet for flushing water. In a modification this orifice is situated on the axis by shortening the inserts. In a further modification the inserts are formed with dovetail-shaped bases.
Patent GB-572042-A (GB)
Title: Improvements in mobile bridge structures
IPC: B66C7/00
Filed: 1943-10-25
Abstract: 572,042. Conveyers; bridge cranes. GENERAL ELECTRIC CO., Ltd., and GYTON F. G. Oct. 25,1943, No. 17579. [Classes 78 (i) and 78 (iv)] In a mobile bridge structure, such as a transporter bridge or an ore reclaiming machine of the kind described in Specification 534,034, comprising a bridge carried at each end by a bogie adapted to be driven along a rail by a motor mounted on the bridge, means are provided for indicating to the driver when the bridge becomes askew. The trailing wheel 9 of the end bogie 7 drives through chain-and-sprocket gearing 16 a shaft 12 which is mounted on the bridge 11 and extends almost to its centre. Near the centre the bridge carries a pillar 13 which supports shafts 14, 15 carrying sprockets 1, 2. A sprocket 4 is supported by the inner depending bight of an endless chain 3 which is looped around the sprockets 1, 2. The spindle 5 of the sprocket 4 is constrained to move vertically in a guide 17 in the pillar and is connected by a cable 20 passed over a series of pulleys on the bridge to a weight 23 which moves over a scale 24 in the driver's cabin. The shaft 14 is driven by chain-and-sprocket gearing 18 from the shaft 12, and the shaft 15 is driven in a similar manner from the trailing wheel of the other bogie. If these trailing wheels do not rotate at the same speed, the shafts 14, 15 will be driven at different rates, and the sprocket 4 will rise or fall. This movement is transmitted by the cable 20 to the indicator in the driver's cabin.
Patent GB-233567-A (GB)
Title: Improvements in sliding doors
IPC: E06B3/46
Filed: 1924-07-23
Abstract: 233,567. Ramsden, T. W., and Sewell, F. July 23, 1924. Sliding doors.-Relates to sliding doors for shop windows, show cases, &c. of the kind which lie in the same plane when closed and which open the one past the other, and consists of supporting each door at the end remote from the meeting edge by an adjustable roller d running un a curved rail r and at the meeting edge by a castor e. At the top, each door is guided by two rollers p on pins situated over the roller d and castor e, respectively, and running in slots provided with branches adapted to allow the doors to move into the same plane in the closed position. The doors may be guided at the top by horizontal rollers engaging between the doors and between frame and doors.
Patent GB-897895-A (GB)
Title: Improvements in and relating to magnesium oxychloride cement
Inventor: CHISHOLM HARRY EDWARD
IPC: C04B28/32
Filed: 1960-05-19
Abstract: A cement composition for applying as thin coatings to wood, compressed cork granule panels, foamed glass or plastic blocks, comprises magnesium chloride and magnesium oxide in the weight ratio MgCl2/MgO of at least 0,372 inert absorbent fillers, such as asbestos, sawdust or wood flour, and hydrophilic colloid selected from the following:- water-soluble carboxymethyl-celluloses or alkali metal salts thereof, polyvinyl ether-ammonium maleamate copolymers, e.g. methyl vinyl ether copolymer, locust beam gum, amylopectin, gum arabic or tragacanth, methylcelluloses or alkali metal salts thereof, hydroxyethylcelluloses, polyacrylamides or a calcium salt of a maleic anhydride copolymer.  For example, to a dry mix containing by weight 25 to 30% magnesia, 47 to 51% of -48+200 mesh quartz sand, 20 to 22% of -100 mesh silica flour and 3% asbestos (chrysotile) fibre, was added 0,01 to 1,5% by weight of dry mix of a hydrophilic colloid (e.g. Na carboxymethyl-cellulose) prior to gauging with a 25 degree Baum\'e MgCl2 solution.
Patent GB-704144-A (GB)
Title: Dartboards
IPC: F41J3/00
Filed: 1950-07-14
Abstract: 704,144. Dartboards. LEGGATT. E. H. .A. June 26, 1951 [July 14, 1950], No. 17705/50. Class 132(3) A dartboard comprises strips or folds of paper running vertically and maintained in face to face contact by pressure without the use of an adhesive. As' shown, in Fig. 1, a dartboard comprises a playing surface 2 made up of a series of separate strips bounded by a wood or metal frame 1. Alternatively, the surface may be made from a piece of paper folded concertina fashion or a long strip folded.
Patent GB-378593-A (GB)
Title: Improvements in bricks or blocks and cavity walling and the like
IPC: E04B1/41
Filed: 1932-03-21
Abstract: 378,593. Building-blocks; walls. CLARE, G. E., 33, College Road, Harrow, Middlesex. March 21, 1932, No. 17802/31. [Classes 20 (iv) and 87 (i).] Cavity walls comprise inner and outer walls built of blocks or slabs each provided with one or more frogs 2, as shown in the Figure, impressed on one side to a depth of not less than one half of the thickness of the block, the edges of the block surrounding the frogs being recessed at 3 to provide projections 5, 8 at the ends and centre, the recesses having a greater area than the projections. The walls are built up of blocks with the frogs facing one another and with the projections in contact; or the walls may be spaced apart by ties which may be formed of asbestos cement.
Patent GB-815073-A (GB)
Title: Corrugated paper board with a tear strip
IPC: B65D5/54
Filed: 1956-06-08
Abstract: 815,073. Corrugated paper-board. GUYER, R. June 8, 1956, No. 17820/56. Class 96. [Also in Group XVII] In making faced corrugated paper-board having a tear-strip, e.g. for use in the manufacture of boxes or cartons as described in Specification 777,079, [Group XVII], the paper facing liner 31, Fig. 2, is perforated or completely or partially cut through along tear-lines 25 and 26 to form a tear-strip 27 before being glued to the central corrugated paper web 33. The other paper facing liner 32 may also be perforated or cut along tear-lines. In the method of making the corrugated paper-board according to Fig. 4, a web of paper 33 is drawn from a roll 45 and corrugated between rollers 47 and 44. An adhesive is applied by a roller 49 to the crests of the corrugations on one side of the web to which the liner 31 is applied by a pressure roller 43 after having been slit by knives 35 to form the above-mentioned tear-strip. The resulting single-faced corrugated paper-board is guided between conveyers 51 and 52 on to a conveyer 53, on which it is looped and dried. It then passes between a pressure roller 55 and a wheel 56 which applies adhesive to the crests of the corrugations on the other side of the web 33. The liner 32 after having been slit, if desired, by knives 64, is then applied to the lastmentioned corrugations by a pressure roller 62 to form double-faced corrugated paper-board, from which carton blanks, each having a tearstrip and fold lines, may be made.
Patent GB-214883-A (GB)
Title: Improved apparatus for the manufacture of protected metal or other sheets
IPC: E04B1/64
Filed: 1923-07-10
Abstract: 214,883. Knowles, J. T., (Robertson Co., H. H.). July 10, 1923. Sheet-metal slabs.-Metal sheets are covered with asbestos paper &c. attached by asphalts &c., as described in Specification 123,717. The opposite edges of the sheets of coating material may extend beyond the metal sheet and be folded over it, and the other layer, as shown, or the lower layer may project on both sides, and be folded over the other.
Patent GB-221605-A (GB)
Title: An improved appliance or machine for jiggering or marking up book covers
IPC: B42C7/00
Filed: 1923-07-10
Abstract: 221,605. Blunt, F. E. July 10, 1923. Creasing.-A machine for " marking up " or forming " blind lines " across the backs of book covers comprises one or more rotatable, circular tools b against the peripheral edges e of which the back of the book cover is pressed. The tools b may be adjustably and interchangeably mounted on a rotary spindle a to vary the type of " marking up " and are heated by means such as gas jets or by friction with the cover. The spindle a is detachably mounted in the frame g, one end of the spindle being carried by a screwed or otherwise withdrawable bearing h and the other end engaging a driving extension j through a socket i and feather k. The book is supported on, and raised and lowered about, a roller m and is positioned against an eccentric disc s or other stop. The ends of the roller m are supported in radius arms n and carry screwed pintles adjustably locked in curved slots in the frame g by nuts r. The tools bare cleaned by a pad e mounted at its ends in swinging arms and means may be provided for greasing their edges c. The Provisional Specification refers to a spring support for the rotary spindle to accommodate irregularities in the cover.
Patent GB-640841-A (GB)
Title: Improvements in protective cases for artificial wreaths
IPC: A01G5/04
Filed: 1948-07-02
Abstract: 640,841. Ornament cases. BROWN & CO., Ltd., E., SUPPLIES & SERVICE CONSTRUCTION CO., Ltd., and WALL, R. July 2, 1948, No. 17921. [Class 93] A base for a protective case for artificial wreaths comprises a one piece spinning, pressing or the like of aluminium or another ductile metal having pivoted thereto on its underside a plurality of clip members each comprising a flat portion extending substantially circumferentially of the base in close proximity to the underside thereof and an upwardly and inwardly turned operative tongue the end of which is disposed above the marginal portion of the base. Referring to the drawings the base 1 has a raised platform 1a connected by vertical wall 1b to inner of annular flange 1c the outer edge of which has a beading 1d. Rivetted at 2 is clip member 3, the short limb being turned upwards and inwards so that its extremity 3a overlies the base and is spaced therefrom so as to clip over flange 4a of domed cover 4. A pipe 6 on underside of flange 1c frictionally locks clip member 3 by means of depression 7 on clip member face when in operative position. This locking device may be replaced by a latch type locking device, for which purpose clip member 3 has a short nose-piece 3b adapted to be locked by latch member 8 which is pivoted stiffly at 9. The case may be hung from wire loop 10 rivetted to the underside of the base, or supported in an inclined position by the wire strut member 11 attached to underside of the base.
Patent GB-672163-A (GB)
Title: Improvements in or relating to methods for the production of finely divided silicon dioxide
IPC: C01B33/18
Filed: 1950-07-18
Abstract: Finely divided, e.g., 5-400 mm , silicon dioxide is produced by treating silicon or a silicon alloy, e.g. silicon iron at an elevated temperature, say 650 DEG C., with dry hydrochloric acid to form chlorine-containing silicon compounds, such as silicon tetrachloride, or silicon chloroform, and free hydrogen, and hydrolyzing the silicon compounds in gaseous form to produce silica, and hydrochloric acid. The silicon compounds may be hydrolyzed by direct introduction of water vapour or by water vapor formed by combustion of the free hydrogen with added oxygen. The very pure hydrochloric acid may be reused in the treatment of silicon or alloy, or in part added to the gaseous reaction products before hydrolysis, or absorbed and recovered as concentrated acid.  Chlorine may be added in the first stage to control the temperature and permit the use of higher temperatures say 1050 DEG C.  Any iron chloride may be condensed from the gases before hydrolysis and the silica is recovered in a dust separator.
Patent GB-1292927-A (GB)
Title: A method for producing l-glutamic acid
IPC: C12R1/73
Filed: 1970-04-15
Abstract: 1292927 L-Glutamic acid TAKEDA YAKUHIN KOGYO KK 15 April 1970 [15 April 1969] 17946/70 Heading C2C  L-Glutamic acid is prepared by culturing an L-glutamic acid-producing and hydrocarbonassimilating microorganism of the genus Corynebacterium which requires glycerol for its growth in a culture niedium containing at least one normal paraffin as the main carbon source together with a nitrogen source, inorganic salts and a glycerol derivative under aerobic conditions and recovering the L-glutamic acid from the culture broth. The microorganism is suitably Corynebacterium alkanolyticum or hydrocarboclastus. The glycerol derivative is suitably glycerol itself, or a phosphoric acid ester, fatty acid ester, aldehyde, carboxylic acid or halide thereof.
Patent GB-111857-A (GB)
Title: Improvements in or relating to Gun Turrets for Submersible Boats.
IPC: F41A27/10
Filed: 1917-12-04
Abstract: 111,857. Fiat-San Giorgio Soc. Anon. Aug. 17, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Submarine vessels.- A submarine is provided with a revoluble armour - plated gun turret entered through a tube projecting into the vessel. The turret 1 turns on rollers 4 and has a central pivoted tube 5 which passes through a stuffing-box 7 in the hull plating 3 and is provided with suitable doors or hatches 6. The gun 2 is mounted to slide in a block 8 having a spherical outer surface rotatable in a stuffing-box 10 formed in the turret. The muzzle of the gun is fitted with a hinged cover 15 actuated by a toothed sector 14 and worm 13 from inside the turret. Windows are formed in the turret for sighting the gun.
Patent GB-1285384-A (GB)
Title: Improvements relating to spectacle frames
Inventor: LYONS THOMAS JOSEPH SR
IPC: G02C5/18
Filed: 1970-04-15
Abstract: 1285384 Improvements in spectacle frames T J LYONS 15 April 1970 [15 April 1969] 18013/70 Heading G2J In order to help spectacles grip the head of a user, a resilient body 20 removeably fits on to a temple 16, and biasing means comprising an elongate resilient member 26 extends from the body to engage the frame front 12 and bias the temple towards its closed position. The resilient member is a spring 26 bearing on the end-piece of the frame front and held in the body 20 by a fold 24. In another embodiment, Fig. 3 (not shown) the resilient member and the body are in one piece. In a further embodiment, Fig. 4 (not shown) the biassing means further comprises a receiver member (48) which clips on to the frame front and extends past the end-piece. A slot in the extension receives a leaf-spring resilient member (46) which is crimped on to the main body (40). In any embodiment the pressure erected by the body and the biassing means can be varied by varying the position of the body and/or the spring relative thereto.
Patent GB-234666-A (GB)
Title: Improvements in and connected with trolley heads for electric tramway and railway vehicles
IPC: B60L5/08
Filed: 1924-07-28
Abstract: 234,666. Stone & Co., Ltd., J., (Ralston, L.). July 28, 1924. Trolly heads.-The, fork a has a solid stem c with a hole d carrying a spring plunger f engaging a slot m in the socket l of the bracket k. The hole d is shouldered at e to engage a corresponding shoulder on the plunger f, and the spring g is retained by a screw plug h.